I love to think theoretically about things. After all how far would we have come as a species if we could only think and discuss the things familiar to us personally? You'd have to toss out quantum physics for sure. But D/s is not as complicated as quarks.
One thing I feel is an interesting topic is that of TPE and "prior consent". My personal feeling is that what most of us call "prior consent" really is an agreement to minimize conflicts at the time a punishment is declared when the sub doesn't fully like or understand it. If there is anything of trust, or honor in the sub's mind, they will most likely use their 'prior consent' as a helpful tool in allowing them to submit in that moment. But, they ARE submitting in that moment.
The exception would be the sub who literally is running away from their Top and is caught, physically restrained, and punished. (risky business) Now, certainly a sub who runs the way a scared child might run, knowing they are wrong, and knowing their Top is right, but just not having the courage to submit on their own, maybe an understanding of self and trust in the authority figure makes the described scenario seem more appropriate and less like abuse. But where's the line in such a situation?
If a sub has truly agreed to let themselves be caught and punished and the Top knows this and does it. What happens when the running away is genuine and not merely the result of cowardice in the face of justice? What if the Top is not right? Or not in control of their anger?